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Regulation of embryonic neurogenesis by germinal zone vasculature #MMPMID27821771
Tata M; Wall I; Joyce A; Vieira JM; Kessaris N; Ruhrberg C
Proc Natl Acad Sci U S A 2016[Nov]; 113 (47): 13414-9 PMID27821771show ga
Neural progenitor cells (NPCs) proliferate to generate precursors for new neurons. To sustain this process, NPCs balance self-renewal with the generation of progeny committed to neuronal differentiation. In the adult mammalian brain, blood vessels and vessel-derived factors help regulate this balance by modulating NPC proliferation and quiescence, independently of vascular roles in providing oxygen and nutrients. In contrast, it has been proposed that vasculature regulates NPC behavior in the developing forebrain by alleviating tissue hypoxia. We show here that germinal zone vasculature in the embryonic hindbrain regulates the balance of NPC self-renewal with neuron production, independently of roles in tissue oxygenation. Information on how blood vessels regulate neurogenesis may aid in the design of therapies for brain regeneration in injury and disease.